XML 143 R119.htm IDEA: XBRL DOCUMENT
v3.19.1

Income Taxes - Summary of non-capital losses carried forward from current and prior years (Detail) - Unused tax losses [member] $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 CAD ($)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | $ 45,446
2030 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 32
2031 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 22
2032 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 341
2033 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 2,547
2034 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 1,782
2035 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 5,452
2036 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 4,623
2037 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | 4,502
2038 [member] |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused non-capital and farm losses | $ 26,145

X
- Definition Unused non capital and farm losses. + References No definition available. + Details
Name: | cron_UnusedNonCapitalAndFarmLosses
Namespace Prefix: | cron_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=ifrs-full_UnusedTaxLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireIntwothousandAndThirtySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=cron_ExpireInTwoThousandAndThirtyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |